Holder for dies for drawing rods, wires, etc.



J; P. WINTERS. HOLDER FOR DIES FOR DRAWING RODS, WIRES, ETC. APPLICATIONman JUNE 25. 1920.

' 1A 12,7300 Patented Apr. 11,, 1922 3 SHEETSSHEET I.

. .Mt A

TNVENTOR. .122 J: P lWzniers ATTORNEY.

WINTERS.

HOLDER FOR 0155 FOR DRAWING RODS, wmes, arc. APPLICATION FILED JUNE25,1920.

Patented Apr. 1111, 11922.

3 HEET 2.

IN VEN TOR.

' ATTORNEY,

1. P. WINTERS.

HOLDER FOR DIES FOR DRAWING RODS, WIRES, ETC.

I APPLICATION FILED JUNE 25, 1920.

1A1 238w, Patented Apr. 111, 1922.

3 SHEETS-SHEET 3f INVENTOR.

A TTORNEY.

Winfer'a UNHTED TTES JOSEPH'P. WINTERS, OF EAST LIVERPOOL, OHIO.

HOLDER non nrnsroannawrnseons, wiinis, are.

Specificationof Letters Patent.

Patented Apr. ill, 1922.,

Application filed June 25, 1920.. Serial No. 391,719.

To all whom it may concern Be it known that I. Josnrn P. lVixrnns, acitizen of the United States, residing at East Liverpool, in the countyof Columbiana and State of Ohio, have invented certain new and usefulImprovements in Holders for Dies for Drawing Rods. ires, Etc; and I dohereby declare the following to be a full, clear. and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

The object of the invention is to provide a comparatively simple andefiicient adjustable die holder for cold drawing benches and the like,adapted to withstand the strain to which devices for this generalpurpose are usually subjected, the elements of the chuck being sodesigned as to minimize difficulties in forging and machining the same,and with these'objects in view, the invention consists in aconstructionand combination of parts of which a preferred embodiment is shown in theaccompanying drawings, wherein- Figure 1 is a central sectional view ofthe chuck.

Figure 2 is a plan view of the same.

Figure 8 is a sectional view on the plane indicated by the lines 3-3 ofFigure 1.

Figure 4 is a plan view of the chuck shell with the operating partsomitted.

Figure 5 is a detail view of one of the grip elements.

Figure 6 is a similar view of one of the operating wedges.

Figure 7 is a similar view of one of the guides for the grip elements.

Figure 8 is a similar view of one of the feed screw plates.

The chuck consists essentially of a shell 10 of substantiallycylindrical form, preferably open at one end and flanged or peripherallyreinforced as shown at 11, and closed at the other end with theexception of a central opening 12, grip elements or blocks 13 mounted insuitable guides 14 for radial sliding movement with relation to theshell,

' operating wedges 15 which are adapted to move the grip blocks towardand from the axis of the shell for engaging and disengaging the work,and means such as feed screws 16 for actuating said wedges. The guides1a are secured to the closed end of the shell by means of machine screws17 to the end that they may be independently replaced when necessary ata minimum expense, and are under cut or are provided with under out ways18 for the reception of, the sliding heads 19 at the inner extremitiesof the grip blocks which are of'tapered or wedge shape complementing theshape of the operating wedges 15 and have an interlocking slidingconnection therewith to the end that the movement of the wedges parallelwith the axis of the shell or head will cause inward and outward radialmovement of the grip blocks.

In the construction illustrated the grip blocks are provided with dovetailed tongues 20 for reception by the dove tailed grooves 21 in theoperating wedges 15, and the latter have an inter-locking slidingconnection with the walls of the shell or head as by being provided withdove tailed tongues 22 fitting in undercut or dove tailed grooves 23 insaid walls, to insure the proper movement of the operating wedges inpaths accurately parallel with the axis of the chuckhead or shell. Theoperating bolts or feed screws 16 are headed at their inner ends asshown at 24 to engage under cut slots 25 in the outer ends of the wedgesand are threaded in guide openings 26 formed in feed plates 27 securedto the reinforced outer edges of the chuck head or shell by means of capscrews 28.

It will be seen that the interior of the head or the chuck shell isreadily accessible for cleaning and repair and the several elements arereadily dismountable from the head or shell and are detachable from eachother so that in the event of injury of any of the parts they may bereplaced without involving an expense other than that due to the injuredelements and without necessitating the replacement of any other part.

Moreover the several elements may be readily assembled inasmuch as theremoval of the feed plates 27 will permit of the disengagement of thefeed screws from the operating wedges and the latter from thegrip blocksand consequently the dismounting of the latter from their guides.

Having thus described my invention, what is claimed is:

1. In a die chuck, gripping means. a wedge for the gripping means. saidwedge having a slot, a screw operable to slide the wedge and said screwhaving a portion extending into the slot to suspend the wedge.

2. In a chuck comprising a shell, gripping means, a wedge, said shellhaving a groove into which the wedge extends, said wedge overlapping theshell at the groove to prevent relative transverse movement of the Wedgeand shell, said Wedge having a slot extending inwardly at its upper end,a screw mounted on the Chuck having a head "to extend into the slot ofthe Wedge to suspend the Wedge,'and a guide means Within the shell forthe gripping means.

3. In a die chuck, a chuck member, grip ping means, a Wedge member forthe grippingmeans, one of said members having a groove, the other memberextending into the groove, overlapping means on one ofthe In testimonywhereof I afliX my signature in presenceof tWo Witnessesf v JOSEPH P.WINTERS.

Witnesses:

J. J. HERBERT, THOMAS DOHERTY."

